A building 84 ft high casts a 231-ft shadow. Sarah casts a 11-ft shadow. The triangle formed by the building and its shadow is similar to the triangle formed by Sarah and her shadow. How tall is Sarah?

a) 4 feet

b) 3 feet

c) 6 feet

d) 5 feet

A mutual fund is currently valued at $80 per share and its value per share is increasing at a rate of $0.40 a day. Let V=f (t) be the value of the share t days from now.

Aaron solved an inequality and then graphed the solution as shown below. Which inequality did Aaron solve?

Taylot is making a cookie cake that has a diameter of 15 in what is the area of a fourth of the cake?

The smallest video camera in the world is 0.99 mm in diameter. Is the diameter of the video camera less than or great than 0.1 mm

A bin contains 64 light bulbs of which 10 are defective. if 5 light bulbs are randomly selected from the bin with replacement, find the probability that all the bulbs selected are good ones. round to the nearest thousandth if necessary.

Which one of the following equations illustrates the commutative property? 8 + 3 = 4 + 7 If 3 + 5 = a, then a = 3 + 5 4 + x = x + 4 3 (2 + 5) = 6 + 15

A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture? 15 10 12

The area of a triangle is ½ (b) (h), where the base and height are always two sides of the triangle. a. True b. False

In order to estimate the average electric usage per month, a sample of n = 81 houses was selected, and the electric usage was determined. (a) Assume a population standard deviation of 450-kilowatt hours. Determine the standard error of the mean.

Jeremiah's mom is buying lollipops for treat bags for his birthday party. She wants each of the 36 guests to have 2 lollipops each. The lollipops come in packs of 8 each. How many packs of lollipops will she need to buy?